Agatha’s Welt was looking to strengthen their PMax performance ahead of the Q4 season. With 7 markets to manage and limited room for manual optimization, they needed a more reliable and scalable approach.

Together with Dotidot, they rebuilt their campaign structure from the ground up and delivered ROAS growth across all European markets they operate in.

About the client

Agatha’s Welt is a Czech-origin e-commerce retailer specializing in children’s products such as toys, educational materials, and accessories for kids and parents. What sets the brand apart is its deliberate curation philosophy: every product is selected with an emphasis on meaningful play, developmental value, safety, and sustainability, sourced from trusted manufacturers who share the brand's commitment to quality and environmental responsibility. The brand operates across 7 European markets: Czech Republic, Slovakia, Germany, Austria, Italy, Slovenia, and Croatia. With a broad catalog and multi-market presence, performance marketing automation is essential to maintaining efficiency at scale.

Challenge

When Agatha’s Welt began working with Dotidot, their Performance Max campaigns accounted for over 90% of total ad spend, yet performance was dropping month over month:

• Declining PMax performance: Key campaigns were losing efficiency with no dynamic response mechanism in place.
• Manual, infrequent optimization: Quarterly campaign segmentation, with manual exclusion of underperforming products done at most weekly.
• Unreliable measurement: Inconsistent GA4 data made it impossible to manage spend-to-revenue ratios with confidence. This was a major risk heading into the critical Q4 season.

The goal was clear: reverse the performance decline, build a reliable data foundation, and deliver measurable efficiency improvements across all 7 markets before the peak holiday season.

The strategy: A single source of truth

Dotidot’s app allowed Agatha to combine three data streams into one unified intelligence layer, enabling dynamic, automated product segmentation based on real performance signals.

1/ Unified data foundation

Two data sources were combined to create a complete and trustworthy view of product-level performance:

• Google Ads + GA4: Core campaign metrics for sales trends and demand signals. These Analytical tools still capture market demand accurately enough to act on.
• ERP data: Internal sales and inventory data used to validate and enrich the GA4 and GAds data.

2/ Dynamic ROAS-based product segmentation

This data foundation powered an automated product bucketing system, where products move between segments in real time based on current ROAS:

• HIGH: Top-performing products with verified returns. The budget is automatically prioritized here to maximize revenue potential.
• MID: Solid mid-tier products balancing volume and efficiency. These act as the revenue backbone.
• LOW (budget burners): Products failing to meet ROAS thresholds, confirmed by cross-referencing with ERP data. Spend on these is automatically suppressed to protect ROAS.

This structure replaced the previous ad-hoc approach with a system that continuously self-optimizes. This way products are always segmented in real time and placed in the correct bucket.

Dotidot allows us to automate our campaigns and handle a higher level of detail and personalization in a fraction of the time. Whenever needed, their support team is always ready to discuss our ideas or advise us on Dotidot’s features.
- Jakub Racek, PPC specialist and data analyst, Agatha's Welt

Results: Growth across all 7 markets

What made the difference

• Feed quality to boost PMax: Italy and Slovakia dropped CPC while rising CVR, proving that better product data led Google’s algorithm to reward ads with cheaper, more relevant placements.
• ERP data validation eliminated budget waste: In Germany, removing underperforming products from the feed forced PMax to concentrate budget on proven converters.
• Quick product launches: The segmentation structure made it significantly easier to onboard newly listed products into the right campaign bucket from day one.
• Feed-driven text ads: Dotidot enabled the creation of text campaigns with dynamic variables pulled directly from the product feed, improving ad relevance at scale without additional manual effort.
• Timing mattered: The restructuring was completed before Q4, allowing the system to enter peak season already optimized.
• Automation enabled scaling: With dynamic segmentation running continuously, Agatha’s team no longer needed to manually review campaigns quarterly. The system adapts in real time, freeing up capacity for strategic decisions.

That's it. Agatha now has a stable ROAS and an automated 24/7 structure across all markets that can easily be scaled. The time for the biggest growth has come.

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